UA 6047 then AA 3053 at O'Hare
Pittsburgh → Chicago → Indianapolis
Timetable, Chicago time
20:31UA 6047 from Pittsburgh at the gate
17:27AA 3053 to Indianapolis leaves the gate
20 h 56 apart on the timetable, overnight
AA 3053 leaves 20 h 56 after UA 6047 arrives on the timetable: more than half a day, so not a connection we count.